Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Skill Creator
A skill for creating new skills and iteratively improving them.
At a high level, the process of creating a skill goes like this:
- Decide what you want the skill to do and roughly how it should do it
- Write a draft of the skill
- Create a few test prompts and run claude-with-access-to-the-skill on them
- Help the user evaluate the results both qualitatively and quantitatively
- While the runs happen in the background, draft some quantitative evals if there aren't any (if there are some, you can either use as is or modify if you feel something needs to change about them). Then explain them to the user (or if they already existed, explain the ones that already exist)
- Use the `eval-viewer/generate_review.py` script to show the user the results for them to look at, and also let them look at the quantitative metrics
- Rewrite the skill based on feedback from the user's evaluation of the results (and also if there are any glaring flaws that become apparent from the quantitative benchmarks)
- Repeat until you're satisfied
- Expand the test set and try again at larger scale
…
The line at the top of this page pins the label git:20260904.bb60abf, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (33351 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag
Source
GitHub
razshy/wiggle · 100 stars · license a license file GitHub does not identify · pushed 2026-09-05 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_gcyg5fj4f2lxtfz5
GET https://markdownregistry.com/api/v1/resolve?ref=razshy/wiggle/skill-creator
GET https://markdownregistry.com/api/v1/blob/42765c880e446a83c85f7852fc77b43ecd46c76ca219d68051799ac7425e6943
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
razshy/wiggle · mnt-skills/examples/algorithmic-art/SKILL.md · Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration. Use this when users…
razshy/wiggle · mnt-skills/examples/brand-guidelines/SKILL.md · Applies Anthropic's official brand colors and typography to any sort of artifact that may benefit from having…
razshy/wiggle · mnt-skills/examples/built-in-browser/SKILL.md · Read this skill before the first step that uses the built-in browser, the browser pane inside the Claude desktop app…
razshy/wiggle · mnt-skills/examples/call-to-book/SKILL.md · Make a phone call to book an appointment or reservation. Checks calendar first, gets explicit consent before dialing…
razshy/wiggle · mnt-skills/examples/cancel-unsubscribe/SKILL.md · Cancel a subscription or unsubscribe from a service. Works from a description, a pasted charge line, a URL, or a…
razshy/wiggle · mnt-skills/examples/canvas-design/SKILL.md · Create beautiful visual art in .png and .pdf documents using design philosophy. You should use this skill when the user…
razshy/wiggle · mnt-skills/examples/chrome-browser/SKILL.md · Read this skill before the first step that uses Claude in Chrome, the browser extension whose tools are named…
razshy/wiggle · mnt-skills/examples/computer-use/SKILL.md · Read this skill before the first step of any request to do something in an app on the person's own computer (Notes…
razshy/wiggle · mnt-skills/examples/deep-research/SKILL.md · Use this skill when the user's prompt requires (1) researching a topic across multiple sources, comparing options or…
razshy/wiggle · mnt-skills/examples/doc-coauthoring/SKILL.md · Guide users through a structured workflow for co-authoring documentation. Use when user wants to write documentation…
razshy/wiggle · mnt-skills/examples/event-planning/SKILL.md · Help plan an event — from a birthday dinner to a wedding. Scales to the size of the occasion. Handles venue research…
anthropics/skills · skills/skill-creator/SKILL.md · Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a…
bytedance/deer-flow · skills/public/skill-creator/SKILL.md · Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a…
hkuds/deeptutor · deeptutor/skills/builtin/skill-creator/SKILL.md · Design and author DeepTutor skills (SKILL.md packages). Use when the user wants to create a new skill, improve an…
cherryhq/cherry-studio · resources/skills/skill-creator/SKILL.md · Create, edit, evaluate, and optimize skills, including benchmarking and description tuning for better triggering.
anthropics/claude-plugins-official · plugins/skill-creator/skills/skill-creator/SKILL.md · Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a…
volcengine/openviking · bot/workspace/skills/skill-creator/SKILL.md · Create or update AgentSkills. Use when designing, structuring, or packaging skills with scripts, references, and assets.
garrytan/gbrain · plugin/skills/skill-creator/SKILL.md · Create new skills following the GBrain conformance standard. Generates SKILL.md
with frontmatter, Contract, Phases…
garrytan/gbrain · skills/skill-creator/SKILL.md · Create new skills following the GBrain conformance standard. Generates SKILL.md
with frontmatter, Contract, Phases…